Final answer:
The ratio of the number of apples to bananas is 31.5:7.
Step-by-step explanation:
To find the ratio of the number of apples that Scott buys to the number of bananas that he buys, we need to divide the number of apples by the number of bananas. Scott buys 1260 apples and 280 bananas, so the ratio is 1260/280.
To simplify this ratio, we can divide both numbers by their greatest common factor, which is 40. Dividing 1260 by 40 gives us 31.5, and dividing 280 by 40 gives us 7. Therefore, the simplest form of the ratio is 31.5:7.